IOS-利用AFNetworking监听网络状态

步骤

• 1.创建网络监听者管理者对象

AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];

• 2.设置监听 
  
  • 网络状态

    //显然是枚举值
typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
        AFNetworkReachabilityStatusUnknown          = -1,//未识别的网络
        AFNetworkReachabilityStatusNotReachable     = 0,//不可达的网络
        AFNetworkReachabilityStatusReachableViaWWAN = 1,//2G,3G,4G...
        AFNetworkReachabilityStatusReachableViaWiFi = 2,//wifi网络

-设置网络监听

[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) {
case AFNetworkReachabilityStatusUnknown:
NSLog(@"未识别的网络");
break;

case AFNetworkReachabilityStatusNotReachable:
NSLog(@"不可达的网络(未连接)");
break;

case AFNetworkReachabilityStatusReachableViaWWAN:
NSLog(@"2G,3G,4G...的网络");
break;

case AFNetworkReachabilityStatusReachableViaWiFi:
NSLog(@"wifi的网络");
break;
default:
break;
        }
    }];

• 3.开始监听

[manager startMonitoring];

代码

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
//创建网络监听管理者对象
    AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];

/*
 typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
 AFNetworkReachabilityStatusUnknown = -1,//未识别的网络
 AFNetworkReachabilityStatusNotReachable = 0,//不可达的网络(未连接)
 AFNetworkReachabilityStatusReachableViaWWAN = 1,//2G,3G,4G...
 AFNetworkReachabilityStatusReachableViaWiFi = 2,//wifi网络
 };
 */
//设置监听
    [manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) {
case AFNetworkReachabilityStatusUnknown:
NSLog(@"未识别的网络");
break;

case AFNetworkReachabilityStatusNotReachable:
NSLog(@"不可达的网络(未连接)");
break;

case AFNetworkReachabilityStatusReachableViaWWAN:
NSLog(@"2G,3G,4G...的网络");
break;

case AFNetworkReachabilityStatusReachableViaWiFi:
NSLog(@"wifi的网络");
break;
default:
break;
        }
    }];
//开始监听
    [manager startMonitoring];
}